<!DOCTYPE html>
<html lang="zh">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style type="text/css">
   .container {
            position: relative;
        }
        html, body, .container {
            width: 30%;
            height: 30%;
        }
    </style>
</head>
<body>
<div class="container">
    <div class="video-bg"><video muted="" data-autoplay="" loop="loop" autoplay="autoplay" src="//s3.pstatp.com/aweme/resource/web/static/image/index/tvc-v3_4138031.mp4" class="video-tvc" id="video-tvc" data-object-fit="">抱歉，您的浏览器不支持内嵌视频</video></div></div>
</body>
</html>